. >> reporter: boeing has sold more than 800 around the world, but united is the first u.s. airline to fly the dreamliner in service that began this month. the airlines are buying these because they're cheaper to fly, more efficient, but they're going to sell you on creature comforts like the air itself. there's more oxygen on this plane. it's cleaner and less dry, and they have these huge storage bins too. you can fit four suitcases in here. the plastic body is stronger than metal, so the air pressure inside can be kept at the equivalent of 6,000 feet, instead of the 8,000 or 9,000 in most jets. that translates to higher humidity in the cabin, more comfort, less jet lag and dry skin. >> the increase in humidity, the pressurization of the cabin, the very different experience in today's airplane. >> reporter: the windows are a third bigger. there's a light show on board. different colors for takeoff, cruising, dinner time. >> so, we go into the warm colors, basically like candlelight. >> reporter: pilots say the 787 carries the next level of safety. >> situational awareness that this airpla
